CVE-2026-80779

linux: In the Linux kernel, the following vulnerability has been resolved: net/ionic: avoid OOB TX partner lookup for hwsta...

CVE-2026-80779 is fixed in 52 products on 1 platform, first by DEBIAN-CVE-2026-80779, released September 5, 2026. It is not reported as exploited. Patch Radar priority: High.

High
CVSS
7.8
IMPORTANT
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0017
6th percentile

In the Linux kernel, the following vulnerability has been resolved: net/ionic: avoid OOB TX partner lookup for hwstamp RXQ The dedicated hardware timestamp RX queue is allocated with q->index equal to lif->ionic->nrxqs_per_lif. The normal txqcqs array only contains the regular queue pairs, so using that index to set rxq->partner can read one entry past txqcqs[] and then write through the derived pointer. Only link RX/TX partners for normal queue-pair indexes. Leave the hwstamp RX queue unpaired, and make the XDP_TX path abort cleanly if an RX queue has no TX partner.

Where it's fixed

ProductFixed inFixReleased
Linux
dtb-aarch64 · opensuse-leap 16.0 6.12.0-160000.39.1 OPENSUSE-SU-2026:22091-1 Nov 7, 2026
kernel-64kb · opensuse-leap 16.0 6.12.0-160000.39.1 OPENSUSE-SU-2026:22091-1 Nov 7, 2026
kernel-64kb · sles 15.7 6.4.0-150700.53.84.1 SUSE-SU-2026:4706-1 Nov 7, 2026
kernel-64kb · sles 16.0 6.12.0-160000.39.1 SUSE-SU-2026:24235-1 Nov 7, 2026
kernel-azure · opensuse-leap 16.0 6.12.0-160000.39.1 OPENSUSE-SU-2026:22091-1 Nov 7, 2026
kernel-azure · sles 15.7 6.4.0-150700.53.84.1 SUSE-SU-2026:4706-1 Nov 7, 2026
kernel-azure · sles 16.0 6.12.0-160000.39.1 SUSE-SU-2026:24235-1 Nov 7, 2026
kernel-default · opensuse-leap 16.0 6.12.0-160000.39.1 OPENSUSE-SU-2026:22091-1 Nov 7, 2026
kernel-default · sles 15.7 6.4.0-150700.53.84.1 SUSE-SU-2026:4706-1 Nov 7, 2026
kernel-default · sles 16.0 6.12.0-160000.39.1 SUSE-SU-2026:24197-1 Nov 7, 2026
kernel-default-base · opensuse-leap 16.0 6.12.0-160000.39.1.160000.2.25 OPENSUSE-SU-2026:22091-1 Nov 7, 2026
kernel-default-base · sles 15.7 6.4.0-150700.53.84.1.150700.17.47.1 SUSE-SU-2026:4706-1 Nov 7, 2026
kernel-default-base · sles 16.0 6.12.0-160000.39.1.160000.2.26 SUSE-SU-2026:24235-1 Nov 7, 2026
kernel-docs · opensuse-leap 16.0 6.12.0-160000.39.1 OPENSUSE-SU-2026:22091-1 Nov 7, 2026
kernel-docs · sles 15.7 6.4.0-150700.53.84.1 SUSE-SU-2026:4706-1 Nov 7, 2026
kernel-docs · sles 16.0 6.12.0-160000.39.1 SUSE-SU-2026:24235-1 Nov 7, 2026
kernel-kvmsmall · opensuse-leap 16.0 6.12.0-160000.39.1 OPENSUSE-SU-2026:22091-1 Nov 7, 2026
kernel-kvmsmall · sles 16.0 6.12.0-160000.39.1 SUSE-SU-2026:24235-1 Nov 7, 2026
kernel-livepatch-SLE15-SP7-RT_Update_21 · sles 15.7 1-150700.1.3.1 SUSE-SU-2026:4640-1 Nov 7, 2026
kernel-livepatch-SLE15-SP7_Update_22 · sles 15.7 1-150700.15.3.1 SUSE-SU-2026:4706-1 Nov 7, 2026
kernel-obs-build · opensuse-leap 16.0 6.12.0-160000.39.1 OPENSUSE-SU-2026:22091-1 Nov 7, 2026
kernel-obs-build · sles 15.7 6.4.0-150700.53.84.1 SUSE-SU-2026:4706-1 Nov 7, 2026
kernel-obs-qa · opensuse-leap 16.0 6.12.0-160000.39.1 OPENSUSE-SU-2026:22091-1 Nov 7, 2026
kernel-obs-qa · sles 16.0 6.12.0-160000.39.1 SUSE-SU-2026:24235-1 Nov 7, 2026
kernel-rt · opensuse-leap 16.0 6.12.0-160000.39.1 OPENSUSE-SU-2026:22091-1 Nov 7, 2026
kernel-source · opensuse-leap 16.0 6.12.0-160000.39.1 OPENSUSE-SU-2026:22091-1 Nov 7, 2026
kernel-source · sles 15.7 6.4.0-150700.53.84.1 SUSE-SU-2026:4706-1 Nov 7, 2026
kernel-source · sles 16.0 6.12.0-160000.39.1 SUSE-SU-2026:24235-1 Nov 7, 2026
kernel-syms · opensuse-leap 16.0 6.12.0-160000.39.1 OPENSUSE-SU-2026:22091-1 Nov 7, 2026
kernel-syms · sles 15.7 6.4.0-150700.53.84.1 SUSE-SU-2026:4706-1 Nov 7, 2026
kernel-syms · sles 16.0 6.12.0-160000.39.1 SUSE-SU-2026:24235-1 Nov 7, 2026
kernel-uek · ol 10 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek · ol 9 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-core · ol 10 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-core · ol 9 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-debug · ol 10 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-debug · ol 9 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-debug-core · ol 10 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-debug-core · ol 9 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-debug-devel · ol 10 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-debug-devel · ol 9 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-debug-modules · ol 10 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-debug-modules · ol 9 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-debug-modules-core · ol 10 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-debug-modules-core · ol 9 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-debug-modules-deprecated · ol 10 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-debug-modules-deprecated · ol 9 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-debug-modules-desktop · ol 10 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-debug-modules-desktop · ol 9 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-debug-modules-extra · ol 10 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-debug-modules-extra · ol 9 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-debug-modules-extra-netfilter · ol 10 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-debug-modules-extra-netfilter · ol 9 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-debug-modules-usb · ol 10 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-debug-modules-usb · ol 9 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-debug-modules-wireless · ol 10 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-debug-modules-wireless · ol 9 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-devel · ol 10 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-devel · ol 9 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-doc · ol 10 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-doc · ol 9 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-modules · ol 10 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-modules · ol 9 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-modules-core · ol 10 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-modules-core · ol 9 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-modules-deprecated · ol 10 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-modules-deprecated · ol 9 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-modules-desktop · ol 10 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-modules-desktop · ol 9 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-modules-extra · ol 10 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-modules-extra · ol 9 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-modules-extra-netfilter · ol 10 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-modules-extra-netfilter · ol 9 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-modules-usb · ol 10 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-modules-usb · ol 9 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-modules-wireless · ol 10 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-modules-wireless · ol 9 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-tools · ol 10 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-tools · ol 9 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek64k · ol 10 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek64k · ol 9 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek64k-core · ol 10 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek64k-core · ol 9 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek64k-devel · ol 10 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek64k-devel · ol 9 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek64k-modules · ol 10 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek64k-modules · ol 9 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek64k-modules-core · ol 10 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek64k-modules-core · ol 9 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek64k-modules-deprecated · ol 10 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek64k-modules-deprecated · ol 9 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek64k-modules-desktop · ol 10 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek64k-modules-desktop · ol 9 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek64k-modules-extra · ol 10 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek64k-modules-extra · ol 9 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek64k-modules-extra-netfilter · ol 10 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek64k-modules-extra-netfilter · ol 9 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek64k-modules-usb · ol 10 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek64k-modules-usb · ol 9 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek64k-modules-wireless · ol 10 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek64k-modules-wireless · ol 9 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-zfcpdump · opensuse-leap 16.0 6.12.0-160000.39.1 OPENSUSE-SU-2026:22091-1 Nov 7, 2026
kernel-zfcpdump · sles 15.7 6.4.0-150700.53.84.1 SUSE-SU-2026:4706-1 Nov 7, 2026
kernel-zfcpdump · sles 16.0 6.12.0-160000.39.1 SUSE-SU-2026:24235-1 Nov 7, 2026
linux · Debian 13.5 (trixie) 6.12.107-1 DEBIAN-CVE-2026-80779 Sep 5, 2026
linux · Debian 14 7.1.12-1 DEBIAN-CVE-2026-80779 Sep 5, 2026
linux-6.12 · Debian 12.15 (bookworm) 6.12.107-1~deb12u1 DEBIAN-CVE-2026-80779 Sep 5, 2026

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